Finding the Fourth Proportional to 6,872,855.46, 9,483,985.62 and 3,972,434.19
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Solution
The fourth proportional to 6,872,855.46, 9,483,985.62 and 3,972,434.19 is: 5,481,638.45
Step by Step Solution
- Step 1: Write the proportion equation
6,872,855.46 : 9,483,985.62 = 3,972,434.19 : x - Step 2: Convert to fraction form
6,872,855.46/9,483,985.62 = 3,972,434.19/x - Step 3: Cross multiply
6,872,855.46x = 9,483,985.62 × 3,972,434.19 - Step 4: Simplify right side
6,872,855.46x = 37,674,508,734,356.34 - Step 5: Solve for x
x = 37,674,508,734,356.34/6,872,855.46 - Step 6: Final answer
x = 5,481,638.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.